package com.zzp.basepresenter.util;

import java.io.Serializable;

public class Bean implements Serializable {

    public String returnType(String str) {
        if (str == null) {
            return "";
        }
        if (str.equals("")) {
            return "";
        }
        if (str.equals("null")) {
            return "";
        }
        return str;
    }
}
